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We construct a spin-drift-diffusion model to describe spin-polarized electron transport in zincblende semiconductors in the presence of magnetic fields, electric fields, and off-diagonal strain. We present predictions of the model for…

材料科学 · 物理学 2009-11-11 M. Hruska , S. Kos , S. A. Crooker , A. Saxena , D. L. Smith

In this paper, we investigate the effect of chiral-induced spin selectivity (CISS) on the radical pair model of avian magnetoreception. We examine the impact of spin selectivity on the avian compass sensitivity. In this analysis, we also…

生物物理 · 物理学 2023-05-23 Yash Tiwari , Vishvendra Singh Poonia

The elucidation of the mechanisms behind chiral-induced spin selectivity remains an outstanding scientific challenge. Here we consider the role of delocalised phonon modes in electron transport in chiral structures and demonstrate that spin…

介观与纳米尺度物理 · 物理学 2023-01-12 Clemens Vittmann , James Lim , Dario Tamascelli , Susana F. Huelga , Martin B. Plenio

A spin transport model is employed to study the effects of spin dephasing induced by diffusion-driven transit-time uncertainty through semiconductor spintronic devices where drift is the dominant transport mechanism. It is found that in the…

材料科学 · 物理学 2009-11-13 Biqin Huang , Ian Appelbaum

Spin accumulation induced by an electric field in chiral electron system is investigated based on a linear response theory. It is shown that the spin response function has a spatially uniform component due to the chiral angular momentum…

介观与纳米尺度物理 · 物理学 2022-06-08 Gen Tatara

We utilize simulations of electron scattering by a chain of dynamical quantum spins, to analyze the interplay between the spin transfer effect and the magnetization dynamics. We show that the complex interactions between the spin-polarized…

材料科学 · 物理学 2021-04-21 Neil Tramsen , Alexander Mitrofanov , Sergei Urazhdin

We investigate ballistic spin transport in a two dimensional electron gas system through magnetic barriers of various geometries using the transfer matrix method. While most of the previous studies have focused on the effect of magnetic…

介观与纳米尺度物理 · 物理学 2015-06-18 Nammee Kim , Heesang Kim

Dispersion interactions are one of the components of van der Waals (vdW) forces, which play a key role in the understanding of intermolecular interactions in many physical, chemical and biological processes. The theory of dispersion forces…

介观与纳米尺度物理 · 物理学 2022-06-29 M. Geyer , R. Gutierrez , V. Mujica , J. F. Rivas Silva , A. Dianat , G. Cuniberti

Spin selective transport is usually associated with spin-orbit interactions. However, these interactions are invariant under time-reversal symmetry, and the Onsager relations and Bardarson's theorem imply that such interactions cannot yield…

介观与纳米尺度物理 · 物理学 2025-04-07 Amnon Aharony , Ora Entin-Wohlman

We theoretically analyze spin filtering in two-terminal systems, induced by the spin-orbit interaction (SOI), as a possible origin of the ``chirality-induced spin selectivity'' (CISS) effect observed experimentally in chiral molecules, such…

介观与纳米尺度物理 · 物理学 2022-12-26 Yasuhiro Utsumi , Takemitsu Kato , Ora Entin-Wohlman , Amnon Aharony

A minimal model is exactly solved for electron spin transport on a helix. Electron transport is assumed to be supported by well oriented $p_z$ type orbitals on base molecules forming a staircase of definite chirality. In a tight binding…

介观与纳米尺度物理 · 物理学 2015-05-26 Ernesto Medina , Luis A. González-Arraga , Daniel Finkelstein-Shapiro , Bertrand Berche , Vladimiro Mujica

Magnons in antiferromagnets exhibit two chiral modes, providing an intrinsic degree of freedom for magnon-based computing architectures and spintronic devices. Electrical control of chiral splitting is crucial for applications, but remains…

材料科学 · 物理学 2026-01-22 Yu Xie , Dinghui Wang , Chao Li , Xiaofan Shen , Junting Zhang

Spin-dependent ballistic transport through a tunnel barrier is treated within the one-dimensional nearly-free-electron model. The comparison with free electrons reveals significant effects of band gaps, in particular in the bias dependence.…

介观与纳米尺度物理 · 物理学 2007-05-23 Peter Bose , Juergen Henk , Ingrid Mertig

We investigate quantum transport in a two-dimensional electron system coupled to a chiral molecular potential, demonstrating how molecular chirality and orientation affect charge and spin transport properties. We propose a minimal model for…

介观与纳米尺度物理 · 物理学 2025-07-23 Ragheed Alhyder , Mikhail Lemeshko , Alberto Cappellaro

We present simulations of an imaging mechanism that reveals the trajectories of electrons in a two-dimensional electron gas (2DEG), as well as simulations of the electron flow in zero and small magnetic fields. The end goal of this work is…

介观与纳米尺度物理 · 物理学 2009-11-11 Katherine E. Aidala , Robert E. Parrott , E. J. Heller , R. M. Westervelt

Recent observations of considerable spin polarization in photoemission from metal surfaces through monolayers of chiral molecules were followed by several efforts to rationalize the results as the effect of spin-orbit interaction that…

介观与纳米尺度物理 · 物理学 2015-06-16 Joel Gersten , Kristen Kaasbjerg , Abraham Nitzan

Recent advances in synthetic quantum matter allow researchers to design quantum models inaccessible in traditional materials. Here, we propose protocols to engineer a new class of quantum spin models, which we call spin Kitaev models. The…

量子气体 · 物理学 2025-08-26 Chenwei Lv , Thomas Bilitewski , Ana Maria Rey , Qi Zhou

The phenomenon of mesoscopic Spin-Hall effect reveals in a nonequilibrium spin accumulation (driven by electric current) at the edges of a ballistic conductor or, more generally, in the regions with varying electron density. In this paper…

介观与纳米尺度物理 · 物理学 2009-12-24 P. G. Silvestrov , E. G. Mishchenko

Scattering of electrons from chiral spin textures such as the skyrmions is an emerging research area due to its richness in topological quantum transport, which is significant for spintronic devices. We study the dynamical process of…

介观与纳米尺度物理 · 物理学 2026-03-03 Hareram Swain , Arijit Mandal , S. Satpathy , B. R. K. Nanda

We consider properties of a two-dimensional electron system in a random magnetic field. It is assumed that the magnetic field not only influences orbital electron motion but also acts on the electron spin. For calculations, we suggest a new…

介观与纳米尺度物理 · 物理学 2009-11-07 Kazutaka Takahashi , K. B. Efetov